Difference between revisions of "2N2207"

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The 2N2207 is used in a variety of 1960's Tektronix equipment including the [[3B1]], [[547]], [[321|321A]], and [[3B3]].   
 
The 2N2207 is used in a variety of 1960's Tektronix equipment including the [[3B1]], [[547]], [[321|321A]], and [[3B3]].   
 
The Tektronix part number for the 2N2207 is 151-063.  
 
The Tektronix part number for the 2N2207 is 151-063.  
2N2207 are a common source of problems on Tektronix scopes from the 1960's.
+
Due to tin whisker growth inside the case, 2N2207 are a common source of problems on Tektronix scopes from the 1960's.
 
In most (but not all) circuits, a failed 2N2207 can be replaced with a  
 
In most (but not all) circuits, a failed 2N2207 can be replaced with a  
 
modern silicon PNP transistor.
 
modern silicon PNP transistor.

Revision as of 14:39, 29 December 2015

The 2N2207 is a germanium PNP transistor with

  • Ft = 140MHz
  • Ic(max) = 50mA
  • hfe(min) = 36

The 2N2207 is used in a variety of 1960's Tektronix equipment including the 3B1, 547, 321A, and 3B3. The Tektronix part number for the 2N2207 is 151-063. Due to tin whisker growth inside the case, 2N2207 are a common source of problems on Tektronix scopes from the 1960's. In most (but not all) circuits, a failed 2N2207 can be replaced with a modern silicon PNP transistor.